feat(angular): expose Ionic Gestures via GestureController (#19864)

* expose gestures thru angular

* run linter

angular/src/index.ts

@@ -31,6 +31,7 @@ export { NavController } from './providers/nav-controller';
 export { DomController } from './providers/dom-controller';
 export { Config } from './providers/config';
 export { AnimationController } from './providers/animation-controller';
+export { GestureController } from './providers/gesture-controller';
 
 // ROUTER STRATEGY
 export { IonicRouteStrategy } from './util/ionic-router-reuse-strategy';